Blade and tooth structure for excavating buckets



Nov. 11, 1952 A. THEBIAY 2,617,210

BLADE AND TOOTH STRUCTURE FOR EXCAVATING BUCKETS Filed April 1, 1949 Fig. --3

I n ventar Ari Thebiay Patented Nov. 11, 1952 BLADE AND TOOTH STRUCTURE FOR EXCAVATING BUCKETS Art Thebiay, Eagle Grove, Iowa Application April 1, 1949, Serial N 0. 84,911

1 Claim. 1

This invention relates to scrapers and loaders and has for its primary object to enable a bucket or loader to be used for diverse scraping and loading tasks by providing a removable blade for the bucket, so that when the blade is attached the bucket can be used for loading dirt, and other similar material and when detached the bucket can be employed as a hay or straw loader.

A further important object of this invention is to provide a detachable blade for a bucket, means being provided for securing the blade to the bucket and holding the same in place, whereby the more forward pressure that is exerted drives the blade into place and holds the same firmly in place.

A further important object of this invention is to secure a plurality of parallel forwardly projecting teeth to a bucket and to form the teeth so that they will be held in ground engagement when the bucket is moved along the ground.

Another important object of this invention is to provide a blade attachment, that is simply and durably built in a one-piece integral construction and is provided with means for securely fastening the same to the novelly constructed teeth projecting from a bucket, so that the blade is held securely on the forward lip of the bucket.

These and ancillary objects and structural features of merit are attained by this invention,

a preferred embodiment of which is set forth in the following description, illustrated in the accompanying drawing, wherein:

Figure 1 is a top plan view of the loader blade, and bucket;

Figure 2 is a view in perspective of the blade;

Figure 3 is an enlarged detail sectional View taken substantially on line 33 of Figure 1, looking in the direction of the arrows;

Referring now more particularly to the drawings, the numeral I designates a conventional digging bucket or scraper, having a curved back [2 and opposing end walls M and E6, the curved back 12 terminating in a bottom plate la. The bucket is pivotally carried by depending supporting arms 29 which are pivoted as at 22, the arms being actuated by the hydraulic lift and piston or mechanical linkage system carried by a tractor or similar powered agricultural unit, not shown. The stops 26 are formed on the outer surfaces of the sides I 4 and 16 above the arms 20 limiting the upward movement of the arms 20 and thereby raising and lowering the bucket.

A plurality of teeth 28, such as angle irons or bars, are welded or otherwise secured on the upper surface of the bottom wall I8 and project forwardly therefrom in substantial parallelism.

The angle irons terminate in beveled ends 30 which are inclined forwardly and downwardly.

End teeth 32 and 34 terminate in free inclined extremities, while the intermediate teeth have semi-circular hold-down plates 35 integrally formed on their free ends, the plates being cooperatively disposed in relation to each other. Thus, the intermediate teeth are divided into pairs 38 and 49, with the hold down plates 36 of each pair of teeth extending towards each other. The hold down plates 36 function to retain the extending ends of the teeth in ground engagement, or in engagement of the material so that a full load of material is obtained with less power. Conventionally, straight edged or inclined edged teeth upon striking an object or on being moved over uneven terrain have a tendency to jump up. The hold down plates 33 formed on the inclined unattached ends of the teeth prevent this action and insure a smoother and quicker loading action.

A blade plate 42 is adapted for detachable association with the extending portions of the teeth, as seen in Figure 1. The blade 42 is adapted for detachable association with the extending edge 44 and is provided with an opposing jagged edge 46. It is to be noted that the edge 46 consists of a plurality of spaced V-shaped notches 48 defining teeth 50 which underlie the teeth 28 and which have their apex portions beveled and sharpened as at 52.

A plurality of upstanding angle irons 54 are formed on the upper face of the blade and terminate in lateral horizontally disposed extremities 56, which are positioned parallel with the blade. Thus, the brackets or clamps can be slipped onto the extending horizontal portions of the teeth and the blade can be securely positioned on the lip of the bucket by means thereof.

A further feature can be appreciated with respect to the teeth 28 which are disposed in pairs, each of the pairs being cooperatively disposed so that the material loaded with the bucket is urged therein in separate travel paths.

However, since many other modifications and purposes of this invention will become readily apparent to those skilled in the art upon a perusal of the foregoing description it is to be understood that certain changes in style, size and components may be effected without a departure from the spirit of the invention and within the scope of the appended claim.

Having described the invention, what is claimed as new is: e

A bucket of the character described comprising a bottom, a plurality of spaced, parallel an- 3 gle iron teeth fixed to said bottom and projecting forwardly therefrom, said teeth including horizontal and opposed vertical legs, a detachable blade mounted beneath the teeth in abutting engagement with the front edge of the bottom, upstanding angular hooks on said blade slidably engaged with the horizontal legs of the teeth over the free longitudinal edges thereof for securing the blade thereon, teeth on the front of the blade underlying the first named teeth, and segmental hold-down plates on the free and pertions of the first named teeth projecting laterally in a horizontal plane from the opposed vertical legs thereof.

ART THEBIAY.

REFERENCES CITED The following references are of record in the 'file of this patent:

Number Number 4 UNITED STATES PATENTS Name Date Sweet Apr. 2, 1850 Skone Oct. 13, 1891 Smith et al. May 1, 1906 McKee et a1. July 2, 1912 Hemme -1 July 17, 1917 Boots Jan. 13, 1925 Reynolds Feb. 23, 1926 Clark Feb. 2, 1932 FOREIGN PATENTS Country Date Germany Nov. 8, 1940 

